Re: Voting Disks and OCR on 11.2.0.2
- From: Zabair Ahmed <roon987@xxxxxxxxxxx>
- To: DimitreRadoulov <cichomitiko@xxxxxxxxx>
- Date: Wed, 19 Sep 2012 11:58:38 +0100 (BST)
So, back to my original question. Do I have a single point of failure?
I have single raw/block device LUN which is configured within ASM as an ASM
diskgroup (ASMSYS) with EXTERNAL REDUNDANCY to hold a single Voting Disk. At
the SAN level I am told by the sysadmin that it's either RAID 1 or RAID 5.
I concur with you about having the OCR mirrored.
Am I just being silly or could I have a serious issue down the line...
--- On Wed, 19/9/12, Radoulov, Dimitre <cichomitiko@xxxxxxxxx> wrote:
From: Radoulov, Dimitre <cichomitiko@xxxxxxxxx>
Subject: Re: Voting Disks and OCR on 11.2.0.2
To: "Zabair Ahmed" <roon987@xxxxxxxxxxx>
Cc: oracle-l@xxxxxxxxxxxxx
Date: Wednesday, 19 September, 2012, 11:32
On 19/09/2012 12:26, Zabair Ahmed wrote:
Also the ora_asmsys_disk01 is a raw/block device, see below..
/home/grid > ls -trl /dev/ora_asmsys_disk01
crw-rw---- 1 grid asmadmin 18, 82 19 Sep 10:54 /dev/ora_asmsys_disk01
Is this supported in 11.2.0.2. I thought I read that raw/blocks devices are not
supported for storing the Voting Disk and OCR. Am I missing something here? We
are using ASM to store the VD and OCR.
I believe this is just a LUN that contains an asm disk wich is part of the
ASMSYS disk group ...
Are you worried about the "c" (character special device)? I believe this is
normal,
you have block and character special devices for that LUN.
Dimitre
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